The text off various letters of marque are on this site http://zeerovery.nl/history/marque2.htm
I made it on a computer (I knew that desktop publishing course would come in handy one day). A lot of the actual calligraphy was drawn in an illustration package then its printed on parchment velum paper that I print an aged pattern onto. The seals are real wax and I had a King George coat of arms made into a seal stamp. The wallet i made myself from leather and pressed brass decorations.
I had them up on ebay for a while for £30 selling them as custom letters of marque that I put the buyers name and the name and type of their ship on, but as I only sold a few I took them off until I can get my own shop site up and running. I just have the actual letter up on ebay now without the leather folder for £10.
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...em=160339490511